James h



May s, 1923. 1,454,406 J. H. RAND INDEX DEVICE `F`iled Feb. ll 1922 Patented May 8, 1923.

UNITED STATES JAMES H. RAND, OIE' NORTH TONAWANDA, NEW YORK.

INDEX DEVICE.

Application filed February To @ZZ whom t may concern.'

Be it known that I, JAMES H. RAND, a citizen of the United States of America, and resident of North Tonawanda, in the county of Niagara and State of New York, have invented new and useful Improvements in Index Devices, of which the following is a specification.

rlhis invention relates to card indexes and more particularly to card indexes of the type in which a plurality of cards are mounted in an upright frame in overlapping relationship so that the lower margins of the cards are visible and so that cards may be swung apart to display the data on the overlapped portions.

According to this invention a sheath of Celluloid or other suitable material is adapted to extend over the margin of an index card or the like in such manner that the card and sheath are slidable longitudinally of each other and a stop is provided at the end of the margin to prevent accidental displacement of the card from the sheath or vice versa, the stop preferably being on the sheath and preferably forming an integral part thereof. The sheath is in the form of a channel having adjacent sides and one of the sides may be folded inwardly to interlock with the card. he aforesaid stop is preferably formed hy turning the end of one side inwardly across the mouth of the channel. The side of the channel which is not inturned at the end as aforesaid may terminate short of the other side to provide an opening through which the card may be slipped into the sheath; but when the sheath is made of Celluloid or other flexible material the channel may be spread open sufficiently to permit the insertion of the card past the aforesaid stop without terminating the one side much7 if any, short of the other side.

In the accompanying drawings which illustrate the invention,-

lA is a rear view of one of the devices;

Fig. 2 is a section on the line Q-Q of Fig. l; and

Fig. 3 is a sect-ion on the line 7i- 3 of Fig. l.

The embodiment of the invention chosen for the purpose of illustration comprises, in general, the card G and a sheath S fitting over the lower margin. The card C may be provided with suitable means for mount-- 11, 1922. Serial N0. 535,717.

ing it in the frame with other cards, the f to interlock with a fold c on the lower end of the card C. As shown in Fig. l the side of the channel which is folded inwardly terminates short of the other side to provide lateral openings O and O near the ends of the sheet. The other side s of the channel is inturned at each end to form stops I in line with the channel.

The sheath S is preferably made of thin Celluloid sheet material, the Celluloid preferably being transparent so 'that indicia on the lower margin of the card is visible through the sheath.

When the sheath S is made of celluoid or other flexible material the sides s and s may be spread apart sufliciently to permit the insertion of the card into the sheath past the inturned ends I, but this operation is facilitated by providing the openings O and O. lf the material of the sheath S is too stiff to permit spreading of the sides, the card may be inserted through either of the opeiings O and O by slightly iexing the car By virtue of the interlocking folds c and s, the sheath and card cannot beseparated transversely; and accidental displacement of the card and sheath longitudinally of each other is prevented by the inturned ends I which lie in the direct path of the card.

I claim:

l. An index device comprising a card, a sheath extending over the margin of the card, the card being slidable in the sheath longitudinally of the margin, and a stop at the end of said margin to prevent accidental displacement of the card from the sheath.

2. An index device comprising a card, a sheath extending over the margin of the card. the card being slidable in the sheath longitudinally of the margin7 and a stop on each end of the sheath in the direct path of the card to prevent accidental displacement of the card longitudinally of the sheath.

3. An index device comprising a card, a sheath extending over the margin of the card, the card and sheath having an interlocking relationship permitting relative longitudinal sliding of the parts relative to each other7 and one of the parts having an integral stop in the direct path oil the other part to prevent accidental displacement of the parts longitudinally o'f each other.

4L. An index device comprising a card, a sheath extending over the margin of the card, the card and sheath having an interlocking relationship permitting the card to slide longitudinally of the sheath, and the sheath having an integral stop at each end to prevent accidental displacement of the card longitudinally of the sheath.

5. An index device comprising a sheath having a channel to receive the margin of a card in sliding relationship longitudinally of the channel, the channel having a side opening near one end through which the card may be inserted and having stops at the ends of the channel to prevent accidental displacement of the sheath.

6. An. index device comprising a sheath having a channel to receive the margin of a card in sliding relationship longitudinally of the channel, one side of the sheath terminating short of the` end of the sheath to permit the insertion of a card, and the other side having an inturned end to retain the card in the channel.

7.. An index device comprising a sheath having a channel to receive the folded margin of a card in sliding relationship longitudinally oi' the channel, one side of the shea-th being folded inwardly to interlock with the card and the other side of the sheath having an intnrned end to retain the card in the channel.

8. An index device comprising a sheath having a channel to receive the -folded niargin of a card in sliding relationship longitudinally of the channel, one side of the sheath being folded inwardly to interlock with the card and the other side of the sheath having an inturned end to retain the card in the channel, the sheath being ilexihle to permit the channel to he spread open sinfliciently to insert the folded margin of the card into the channel past said int-nrned end.

Signed by me at North Tonawanda, N. Y. this eighth day of February 1922.

JAMES H. RAND. 

